status. For Security, use of GPL within groups with well-defined security boundaries should be encouraged to promote faster, more locally autonomous responses to cyber threats. Finally, for Research the policies should encourage appropriate use of FOSS both to share and publish basic research, and to encourage faster commercial innovation. Encourage use of FOSS to promote product diversity. FOSS applications tend to be much lower in cost than their proprietary equivalents, yet they often provide high levels of functionality with good user acceptance. This makes them good candidates to provide product diversity in both the acquisition and architecture of DoD systems. Acquisition diversity reduces the cost and security risks of being fully dependent on a single software product, while architectural diversity lowers the risk of catastrophic cyber attacks based on automated exploitation of specific features or flaws of very widely deployed products. References United States Department of Defense information technology Free software culture and documents Mitre Corporation